/*
 * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under both the BSD-style license (found in the
 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
 * in the COPYING file in the root directory of this source tree).
 * You may select, at your option, one of the above-listed licenses.
 */

#ifndef ZSTD_COMPRESS_SEQUENCES_H
#define ZSTD_COMPRESS_SEQUENCES_H

#include "fse.h"           /* FSE_repeat, FSE_CTable */
#include "zstd_internal.h" /* symbolEncodingType_e, ZSTD_strategy */

typedef enum {
    ZSTD_defaultDisallowed = 0,
    ZSTD_defaultAllowed = 1
} ZSTD_defaultPolicy_e;

symbolEncodingType_e ZSTD_selectEncodingType(
    FSE_repeat* repeatMode, unsigned const* count, unsigned const max,
    size_t const mostFrequent, size_t nbSeq, unsigned const FSELog,
    FSE_CTable const* prevCTable, short const* defaultNorm, U32 defaultNormLog,
    ZSTD_defaultPolicy_e const isDefaultAllowed, ZSTD_strategy const strategy);

size_t ZSTD_buildCTable(void* dst, size_t dstCapacity, FSE_CTable* nextCTable,
                        U32 FSELog, symbolEncodingType_e type, unsigned* count,
                        U32 max, const BYTE* codeTable, size_t nbSeq,
                        const S16* defaultNorm, U32 defaultNormLog,
                        U32 defaultMax, const FSE_CTable* prevCTable,
                        size_t prevCTableSize, void* entropyWorkspace,
                        size_t entropyWorkspaceSize);

size_t ZSTD_encodeSequences(void* dst, size_t dstCapacity,
                            FSE_CTable const* CTable_MatchLength,
                            BYTE const* mlCodeTable,
                            FSE_CTable const* CTable_OffsetBits,
                            BYTE const* ofCodeTable,
                            FSE_CTable const* CTable_LitLength,
                            BYTE const* llCodeTable, seqDef const* sequences,
                            size_t nbSeq, int longOffsets, int bmi2);

#endif /* ZSTD_COMPRESS_SEQUENCES_H */
